// MIT License

// Copyright (c) 2019 Erin Catto

// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:

// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.

// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
// SOFTWARE.

#include "test.h"

class Dominos : public Test
{
public:

  Dominos()
  {
    b2Body* b1;
    {
      b2EdgeShape shape;
      shape.SetTwoSided(b2Vec2(-40.0f, 0.0f), b2Vec2(40.0f, 0.0f));

      b2BodyDef bd;
      b1 = m_world->CreateBody(&bd);
      b1->CreateFixture(&shape, 0.0f);
    }

    {
      b2PolygonShape shape;
      shape.SetAsBox(6.0f, 0.25f);

      b2BodyDef bd;
      bd.position.Set(-1.5f, 10.0f);
      b2Body* ground = m_world->CreateBody(&bd);
      ground->CreateFixture(&shape, 0.0f);
    }

    {
      b2PolygonShape shape;
      shape.SetAsBox(0.1f, 1.0f);

      b2FixtureDef fd;
      fd.shape = &shape;
      fd.density = 20.0f;
      fd.friction = 0.1f;

      for (int i = 0; i < 10; ++i)
      {
        b2BodyDef bd;
        bd.type = b2_dynamicBody;
        bd.position.Set(-6.0f + 1.0f * i, 11.25f);
        b2Body* body = m_world->CreateBody(&bd);
        body->CreateFixture(&fd);
      }
    }

    {
      b2PolygonShape shape;
      shape.SetAsBox(7.0f, 0.25f, b2Vec2_zero, 0.3f);

      b2BodyDef bd;
      bd.position.Set(1.0f, 6.0f);
      b2Body* ground = m_world->CreateBody(&bd);
      ground->CreateFixture(&shape, 0.0f);
    }

    b2Body* b2;
    {
      b2PolygonShape shape;
      shape.SetAsBox(0.25f, 1.5f);

      b2BodyDef bd;
      bd.position.Set(-7.0f, 4.0f);
      b2 = m_world->CreateBody(&bd);
      b2->CreateFixture(&shape, 0.0f);
    }

    b2Body* b3;
    {
      b2PolygonShape shape;
      shape.SetAsBox(6.0f, 0.125f);

      b2BodyDef bd;
      bd.type = b2_dynamicBody;
      bd.position.Set(-0.9f, 1.0f);
      bd.angle = -0.15f;

      b3 = m_world->CreateBody(&bd);
      b3->CreateFixture(&shape, 10.0f);
    }

    b2RevoluteJointDef jd;
    b2Vec2 anchor;

    anchor.Set(-2.0f, 1.0f);
    jd.Initialize(b1, b3, anchor);
    jd.collideConnected = true;
    m_world->CreateJoint(&jd);

    b2Body* b4;
    {
      b2PolygonShape shape;
      shape.SetAsBox(0.25f, 0.25f);

      b2BodyDef bd;
      bd.type = b2_dynamicBody;
      bd.position.Set(-10.0f, 15.0f);
      b4 = m_world->CreateBody(&bd);
      b4->CreateFixture(&shape, 10.0f);
    }

    anchor.Set(-7.0f, 15.0f);
    jd.Initialize(b2, b4, anchor);
    m_world->CreateJoint(&jd);

    b2Body* b5;
    {
      b2BodyDef bd;
      bd.type = b2_dynamicBody;
      bd.position.Set(6.5f, 3.0f);
      b5 = m_world->CreateBody(&bd);

      b2PolygonShape shape;
      b2FixtureDef fd;

      fd.shape = &shape;
      fd.density = 10.0f;
      fd.friction = 0.1f;

      shape.SetAsBox(1.0f, 0.1f, b2Vec2(0.0f, -0.9f), 0.0f);
      b5->CreateFixture(&fd);

      shape.SetAsBox(0.1f, 1.0f, b2Vec2(-0.9f, 0.0f), 0.0f);
      b5->CreateFixture(&fd);

      shape.SetAsBox(0.1f, 1.0f, b2Vec2(0.9f, 0.0f), 0.0f);
      b5->CreateFixture(&fd);
    }

    anchor.Set(6.0f, 2.0f);
    jd.Initialize(b1, b5, anchor);
    m_world->CreateJoint(&jd);

    b2Body* b6;
    {
      b2PolygonShape shape;
      shape.SetAsBox(1.0f, 0.1f);

      b2BodyDef bd;
      bd.type = b2_dynamicBody;
      bd.position.Set(6.5f, 4.1f);
      b6 = m_world->CreateBody(&bd);
      b6->CreateFixture(&shape, 30.0f);
    }

    anchor.Set(7.5f, 4.0f);
    jd.Initialize(b5, b6, anchor);
    m_world->CreateJoint(&jd);

    b2Body* b7;
    {
      b2PolygonShape shape;
      shape.SetAsBox(0.1f, 1.0f);

      b2BodyDef bd;
      bd.type = b2_dynamicBody;
      bd.position.Set(7.4f, 1.0f);

      b7 = m_world->CreateBody(&bd);
      b7->CreateFixture(&shape, 10.0f);
    }

    b2DistanceJointDef djd;
    djd.bodyA = b3;
    djd.bodyB = b7;
    djd.localAnchorA.Set(6.0f, 0.0f);
    djd.localAnchorB.Set(0.0f, -1.0f);
    b2Vec2 d = djd.bodyB->GetWorldPoint(djd.localAnchorB) - djd.bodyA->GetWorldPoint(djd.localAnchorA);
    djd.length = d.Length();

    b2LinearStiffness(djd.stiffness, djd.damping, 1.0f, 1.0f, djd.bodyA, djd.bodyB);
    m_world->CreateJoint(&djd);

    {
      float radius = 0.2f;

      b2CircleShape shape;
      shape.m_radius = radius;

      for (int32 i = 0; i < 4; ++i)
      {
        b2BodyDef bd;
        bd.type = b2_dynamicBody;
        bd.position.Set(5.9f + 2.0f * radius * i, 2.4f);
        b2Body* body = m_world->CreateBody(&bd);
        body->CreateFixture(&shape, 10.0f);
      }
    }
  }

  static Test* Create()
  {
    return new Dominos;
  }
};

static int testIndex = RegisterTest("Examples", "Dominos", Dominos::Create);
